A novel approach for the removal of trace elements from waste fats and oils

The objective was to determine the content of trace elements (Na, K, Ca, Mg, P, B, Fe) in waste fats and cooking oil and to examine adsorption and extraction as methods for purification of oils and fats for their further use as biodiesel feedstocks. Adsorption was conducted using two bentonite-based...

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Bibliographic Details
Published inSeparation science and technology Vol. 55; no. 18; pp. 3487 - 3501
Main Authors Petračić, Ana, Sander, Aleksandra, Cvetnić, Matija
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 11.12.2020
Taylor & Francis Ltd
Subjects
Adsorption
Bentonite
Biodiesel fuels
Biofuels
Carbonates
Chlorides
Choline
Cooking
Cooking oils
Deep eutectic solvents
extraction
Fats
Oils & fats
Potassium
Potassium carbonate
Purification
Solvent extraction
Solvents
Trace elements
trace metals and nonmetals
waste animal fat
waste cooking oil
Water purification
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Summary:The objective was to determine the content of trace elements (Na, K, Ca, Mg, P, B, Fe) in waste fats and cooking oil and to examine adsorption and extraction as methods for purification of oils and fats for their further use as biodiesel feedstocks. Adsorption was conducted using two bentonite-based adsorbents and extraction was conducted with four deep eutectic solvents. Two were choline chloride based and the other two potassium carbonate based. Extraction with choline chloride-based solvents is recommended for purification of waste fats. For waste cooking oil, a two-step process of extraction followed by adsorption is recommended.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2019.1706575